nadal hassan convicted on all counts in the shooting rampage. opening fire on his fellow soldiers, killing 13 people. hassan did not flinch as the verdict was read. he could now face the death penalty. and robert bails behind one of the worst atrocities in the war in afghanistan, the mass killing. sentenced to life without parole today. he confessed to killing 16 villagers in march of 2012. the families traveling 7,000 miles testify against the american staff sergeant. he pleaded guilty to the massacre in order to avoid the death penalty. >>> now to las vegas tonight and a major plot dwarted. an undercover sting that busted a plan well under way. tonight these two suspects in custody. one a grandmother, both charged with planning to kidnap, torture, and kill a cop, all in the shadow of the sunset strip. here's abc's steve osunsami now. >> reporter: on the glittery streets of las vegas, police working under cover since april, say they earned the trust of alleged anti-government sovereign citizens and were able to foil their alleged plans to kill